Facebook’s privacy move: major pivot or headfake?

(FILES) In this file photo taken on March 21, 2018 A lit sign is seen at the entrance to Facebook's corporate headquarters location in Menlo Park, California. - Facebook said Friday, October 12, 2018, that hackers accessed personal data of 29 million users in a breach at the world's leading social network disclosed late last month. (Photo by JOSH EDELSON / AFP)

After building the world's biggest and most powerful social network in history, Mark Zuckerberg says the future of Facebook is something else. 

The strategic shift announced this week by Zuckerberg suggests Facebook no longer wants to be a "digital town square", but a "digital living room" for secure, private communications, in what could be a major transformation on privacy.